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(11)

EP 3 122 919 A2

(12)

(88) Date of publication A3: 10.03.2016 (43) Date of publication: 01.02.2017 Bulletin 2017/05 (21) Application number: 15806802.3 (22) Date of filing: 11.03.2015

(51) International Patent Classification (IPC):  C25D 3/56(2006.01) C25D 3/44(2006.01) C25D 3/54(2006.01) C25D 17/00(2006.01) C25D 17/10(2006.01) C25D 3/12(2006.01) C25D 3/04(2006.01) C25D 7/00(2006.01) C25D 17/02(2006.01) C25D 17/12(2006.01) (86) International application number: PCT/US2015/019839 (87) International publication number: WO 2015/191126 (17.12.2015 Gazette 2015/50)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA (30) Priority: 24.03.2014 US 201461969307 P (71) Applicant: United Technologies Corporation Farmington, CT 06032 (US)

(72) Inventors: LI, Weina South Glastonbury, Connecticut 06073 (US) CHEN, Lei South Windsor, Connecticut 06074 (US) ZAFIRIS, Georgios S. Glastonbury, Connecticut 06033 (US) BEALS, James T. West Hartford, Connecticut 06107 (US) BIRNKRANT, Michael J. Kenilworth, New Jersey 07033 (US) (74) Representative: de Bresser, Sara Jean  Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)